84157461793 has 8 divisors (see below), whose sum is σ = 89110482912. Its totient is φ = 79204727616.

The previous prime is 84157461737. The next prime is 84157461901. The reversal of 84157461793 is 39716475148.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84157461793 - 2²¹ = 84155364641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84157431793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939546 + ... + 1025212.

It is an arithmetic number, because the mean of its divisors is an integer number (11138810364).

Almost surely, 2^84157461793 is an apocalyptic number.

It is an amenable number.

84157461793 is a deficient number, since it is larger than the sum of its proper divisors (4953021119).

84157461793 is a wasteful number, since it uses less digits than its factorization.

84157461793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143471.

The product of its digits is 5080320, while the sum is 55.

The spelling of 84157461793 in words is "eighty-four billion, one hundred fifty-seven million, four hundred sixty-one thousand, seven hundred ninety-three".